When we see records being broken and unprecedented events such as this, the onus is on those who deny any connection to climate change to prove their case. Global warming has fundamentally altered the background conditions that give rise to all weather. In the strictest sense, all weather is now connected to climate change. Kevin Trenberth

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"The term 'air pollutant' shall not include carbon dioxide, water vapor, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, or sulfur hexafluoride."

If only it were that simple. Unfortunately, sulfur hexaflouoride isn't bound by the whims of Congress. If that particular greenhouse-gas pollutant (with a climate-disruption potential that's 22,800 times that of CO2) wants to destroy our atmosphere, then that's what sulfur hexafluoride is going to do.

Blackburn's bill is just one of several in this Congress that aim to stop the Environmental Protection Agency from simply doing its job -- which is to protect the health of you, me, and (yes) members of Congress. Other proposed measures would block efforts to clean our air for two years and take away EPA funding for enforcement of certain clean-air safeguards.

Ironically, the words you'll hear over and over from those who want to stop the EPA from doing its job are "job killing." That's a charged phrase at a time when too many Americans are out of work, but it's also the same hogwash that we've been hearing from polluters for 40 years. Only now those polluters have supporters in Congress who are downright eager to carry their water.

In reality, time and again, cleaning up our air has boosted our economy -- to the tune of trillions of dollars. Even more important, it's saved millions of lives. EPA Administrator Lisa Jackson laid out the facts forcefully and compellingly on the agency's fortieth anniversary last year.

Unfortunately, some members of Congress seem more concerned with representing the interests of polluters than with protecting the health of ordinary Americans. "Job killing" regulations are a scary myth -- but cynical, irresponsible, "people killing" bills that put all of our lives at risk are a much scarier reality.